Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.
Molting is one of the most involved processes of a bird's annual life cycle. Notwithstanding preening and constant care, the marvelously intricate structure of a bird's feather inevitably wears out. All adult birds molt their feathers at least once a year, and upon close observation, one can recognize the frayed, ragged appearance of feathers that are nearing the end of their useful life. Two distinct processes are involved in molting.
The first step is when the old, worn feather is dropped, or shed. The second is when a new feather grows in its place. When each feather has been shed and replaced, then the molt can be said to be complete. This, however, is an abstraction that often does not happen: incomplete, overlapping, and arrested molts are quite common.
Molt requires that a bird find and process enough protein to rebuild approximately one- third of its body weight. It is not surprising that a bird in heavy molt often seems listless and unwell. But far from being random, molt is controlled by strong evolutionary forces that have established an optimal time and duration. Generally, molt occurs at the time of least stress on the bird. Many songbirds, for instance, molt in late summer, when the hard work of breeding is done but the weather is still warm and food still plentiful. This is why the woods in late summer often seem so quiet, when compared with the exuberant choruses of spring.
Molt of the flight feathers is the most highly organized part of the process. Some species, for example, begin by dropping the outermost primary feathers on each side (to retain balance in the air) and wait until the replacement feathers are about one-third grown before shedding the next outermost, and so on. Others always start with the innermost primary feathers and work outward. Yet other species begin in the middle and work outward on both weeks while the replacement feathers grow.
Which of the following is NOT mentioned as a reason that songbirds molt in the late summer?
A. Fewer predators are in the woods
B. The weathers is still warm
C. The songbirds have finished breeding
D. Food is still available
Đáp án A
Điều nào KHÔNG được đề cập như là lý do cho việc loài chim biết hót thay lông vào cuối mùa hè?
A. Ngày càng ít thú ăn mồi ở trong rừng.
B. Thời tiết vẫn còn ấm áp.
C. Những con chim biết hót đã sinh sản xong.
D. Thức ăn vẫn còn.
Thông tin trong bài: "Many songbirds, for instance, molt in late summer, when the hard work of breeding is done but the weather is still warm and food still plentiful. This is why the woods in late summer often seem so quiet, when compared with the exuberant choruses of spring." (Chẳng hạn như, nhiều loài chim biết hót thay lông vào cuối mùa hè, khi việc sinh sản đã xong nhưng thời tiết vẫn ấm áp và thức ăn vẫn dồi dào. Đây là lý do tại sao các khu rừng vào cuối mùa hè thường có vẻ rất yen tĩnh, khi được so sánh với những điệp khúc rực rỡ của mùa xuân.)
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Several people were hurt in the accident but only one_____________to hospital.
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All members of his family are_____________aware of the need to obey the family rules.
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Don't forget to buy me a dictionary, _____________?
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It must be true. She heard it straight from the_____________mouth.
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Finally, she_____________a new idea for increasing sales figures.
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My mother made me_____________him next week.
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"Well, I hope you enjoyed your meal." - "_____________"
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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
Book clubs are a great way to meet new friends or keep in touch with old ones, while keeping up on your reading and participating in lively and intellectually stimulating discussions. If you're interested in starting a book club, you should consider the following options and recommendations.
The first thing you'll need are members. Before recruiting, think carefully about how many people you want to participate and also what the club's focus will be. For example, some book clubs focus exclusively on fiction, others read nonfiction. Some are even more specific, focusing only on a particular genre such as mysteries, science fiction, or romance, others have a more flexible and open focus. All of these possibilities can make for a great club, but it is important to decide on a focus at the outset so the guidelines will be clear to the group and prospective member.
After setting the basic parameters, recruitment can begin. Notify friends and family, advertise in the local newspaper, and hang flyers on bulletin boards in local stores, colleges, libraries, and bookstores. When enough people express interest, schedule a kick-off meeting during which decisions will be made about specific guidelines that will ensure the club runs smoothly. This meeting will need to establish where the group will meet (rotating homes or a public venue such as a library or coffee shop); how often the group will meet, and on what day of the week and at what time; how long the meetings will be; how bookswill be chosen and by whom; who will lead the group (if anyone); and whether refreshments will be served and if so, who will supply them. By the end of this meeting, these guidelines should be set and a book selection and date for the first official meeting should be finalized.
Planning and running a book club is not without challenges, but when a book club is run effectively, the experience can be extremely rewarding for everyone involved.
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On finding the lost girl, he phoned the police.
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